1978 BMW B7 vs. 2009 BMW M5
To start off, 2009 BMW M5 is newer by 31 year(s). Which means there will be less support and parts availability for 1978 BMW B7. In addition, the cost of maintenance, including insurance, on 1978 BMW B7 would be higher. At 4,999 cc (10 cylinders), 2009 BMW M5 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW M5 weights approximately 258 kg more than 1978 BMW B7.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1978 BMW B7 (627 Nm) has 108 more torque (in Nm) than 2009 BMW M5. (519 Nm). This means 1978 BMW B7 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW M5.
Compare all specifications:
| 1978 BMW B7 | 2009 BMW M5 | |
| Make | BMW | BMW |
| Model | B7 | M5 |
| Year Released | 1978 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3500 cc | 4999 cc |
| Engine Cylinders | 6 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Horse Power | 0 HP | 500 HP |
| Torque | 627 Nm | 519 Nm |
| Top Speed | 262 km/hour | 250 km/hour |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Vehicle Weight | 1500 kg | 1758 kg |
| Wheelbase Size | 2800 mm | 2890 mm |
| Fuel Tank Capacity | 70 L | 70 L |
